Question

Dada a função definida por f(x)=3x-2
calcule:
a) f(0)=
b) f(-1)=
c) f(2)=
d) f(-3)=

Answer 1

$f(x)=3x-2 \\ \\ a) \\ f(0)=3.(0)-2 \\ f(0)=-2 \\ \\ b) \\ f(-1)=3.(-1)-2 \\ f(-1)=-3-2 \\ f(-1)=-5 \\ \\ c) \\ f(2)=3.(2)-2 \\ f(2)=6-2 \\ f(2)=4 \\ \\ d) \\ f(-3)=3.(-3)-2 \\ f(-3)=-9-2 \\ f(-3)=-11$